22647639085 has 16 divisors (see below), whose sum is σ = 27723855744. Its totient is φ = 17754489792.

The previous prime is 22647638989. The next prime is 22647639089. The reversal of 22647639085 is 58093674622.

It is a cyclic number.

It is not a de Polignac number, because 22647639085 - 2⁷ = 22647638957 is a prime.

It is a super-2 number, since 2×22647639085² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22647639089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166174 + ... + 270016.

It is an arithmetic number, because the mean of its divisors is an integer number (1732740984).

Almost surely, 2^22647639085 is an apocalyptic number.

It is an amenable number.

22647639085 is a deficient number, since it is larger than the sum of its proper divisors (5076216659).

22647639085 is a wasteful number, since it uses less digits than its factorization.

22647639085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104724.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 22647639085 in words is "twenty-two billion, six hundred forty-seven million, six hundred thirty-nine thousand, eighty-five".